Clevis construction



Patented June 24, 1947 lIren PAT-EN.

Claims. 1

This invention relates to clevis-like devices and has for its object to provide a form of construction which is readily adaptable to varying needs and which, While exhibiting greater strength than similar structures as heretofore cut from bar stock or made as drop forgings, is simple to manufacture.

The advantages of the invention will be apparent from the following description of a preferred form as applied to the construction of a true clevis such as may be applied, for example, to one or both ends of a chain. This preferred form is illustrated in the accompanying drawings of which:

Fig. 1 is an edge or plan view of one of the component stampings;

Fig. 2 is a face View or front elevation of the same stamping;

Fig. 3 is a face view or front elevation of another component stamping;

lig. 4 is an edge or plan view of the assembly; an

Fig. 5 is a face View or front elevation of the same.

According to the present invention, the clevis or the like is built up from a number of sheetmeta] stampings adapted to be assembled in face-to-face contact. The stampings are provided with one or more transverse edge grooves adapted to register in the assembly so as to provide one or more continuous, transverse grooves extending throughout the thickness of the stack. In the preferred form the clevis includes a series of identical stampings adapted to be assembled in groups spaced by a number of other identical stampings of precisely the same contour 'out of shorter length. It Will be understood that the groups of stampings may consist of one or tWo or more elements and that the number of intervening or spacing elements may likewise be varied as the particular need may require.

In this preferred form, the elements of one series comprise generally link-shaped stampings, one of which is shown marked I in Figs. 1 and 2*, having holes 2 and 3 adjacent each end to receive pins or bolts appropriate to couple the clevis to its associated parts. Also, one, and preferably both, of the edge portions 4, 5 is transverselygrooved, as at 6 and 1.

The companion stampings or spacing elements in this instance are of the form shown in Fig. 3. As Will be apparent, each such element 8 is of precisely the same form as element l excepting only that it is shorter, lacking the end portion which includes hole 3. Its grooves 9 and ID are located to register with the grooves 6, 1 of the link I, so that when assembled with their similar edges in registration, a series of both forms of the stampings presents a continuous groove which extends transversely across the opposite edges or sides of an assembled stack of any thickness.

A typical assembly is shown in Fig. 4, in which three pairs of long stampings of the Fig. 1 form alternate with two pairs of short stampings of the Fig. 3 form. As will be understood, this grouping can be varied, both as to the number of stampings in each group and as to the total number, according to requirements. To complete the assembly, the stampings are Welded together throughout the groove zones and in such manner, as indicated in Figs. 4 and 5, that the grooves are completely filled with weld metal and the plates or stampings thereby united by what in effect are continuous bars or bonds Il, l2 extending transversely of the `stack throughout its entire thickness. The Weld may then be finished flush, as by machining or grinding, resulting in the formation of an extremely rugged, integral structure.

In the light of the foregoing description the following is claimed:

1. A clevis comprising a number of identical, link-shaped, sheet-metal stampings each having a hole adjacent each end and a groove across each of two opposite edges, said stampings assembled in groups spaced by a number of other identical and registering stampings of the same contour, including said grooves, but of a length to terminate short of one of the said holes, all of said stampings being united by welt metal lling the said grooves and thereby forming continuous, transverse bonds extending across the full thickness of the assembled stampings on each of the said opposite edges thereof.

2. A clevis comprising a number of identical, link-shaped, sheet-metal stampings each having a hole adjacent each end and a groove across each of two opposite edges, said stampings assembled in groups spaced by a number of other identical stampings of the same Width as saidfirst-mentioned stampings and having similar grooves in their opposite edges, whereby the assembled stampings present continuous grooves extending across the full thickness of the assembly on each of the opposite edges, and Weld metal filling the said grooves.

3. A clevis comprising a number of identical, link-shaped, sheet-metal stampings each having a hole adjacent each end and a groove across at least one edge of the link, said stampings assembled in groups spaced by a. number of other identical stampings similarly grooved and adapted to register with edge portions of the said first-mentioned stampings at least in the region of the said grooves, whereby the assembled stampings present a continuous groove extending across the full thickness of the assembly on one face thereof, and weld metal lling the said groove.

4. A clevis comprising a plurality of sheetmetal stampings assembled in face-to-face contact and of a contour to register with one another throughout at least two opposite edge portions,

such edge portions of all of the stampings having transverse, registering grooves forming a continuous groove on each of two opposite faces of the assembly, and weld metal lling the said grooves.

5. A clevis comprising a plurality of sheetmetal stampings assembled in face-to-face contact and of a contour to register with one another throughout an edge portion of each stamping, such edge portions of the assembled stamp ings presenting a continuous groove extending transversely of the assembly, and Weld metal filling the said groove.

RICHARD L. MULLANEY. 

